Answer:
The required flow rate of air in mol/h is 20144 and the percent by mass of oxygen in the product gas is 23,1%.
Explanation:
The air of 9 mole% methane have an average molecular weight of:
And a flow of 700'000g/h÷27,8g/mol = 25180 mol/h
In the reactor where methane solution and air are mixed:
In = Out
Air balance:
91% air×25180 mol/h + 100% air×X = 95%air×(X+25180)
<em>Where X is the flow rate of air in mol/h.</em>
<em>Solving, </em><em>X = 20144 mol air/h</em>
The air in the product gas is:
95%×(20144 + 25180) mol/h = 43058 mol air× 21%O₂ = 9042 mol O₂ ×32g/mol = 289 kg O₂
43058 mol air×29g/mol 1249 kg air
Percent mass of oxygen in the product gas is: =0,231 kg O₂/ kg air* 100 = 23,1%
I hope it helps!
Answer:
In much the same way that a cloud blocks the heat on a hot day, the ozone layer in the stratosphere blocks out the sun's deadly ultraviolet rays. It acts as our planet's natural sunblock.
Explanation:
PLZ MARK BRAINLIEST
I pretty sure the answer is true but here is also a site to help you. https://www.britannica.com/science/wave-water
Explanation:
1.) Sodium sulfur
1.2) Copper (||) chloride
1.3) Calcium oxide
1.4) Silver bromide
1.5) Zinc fluoride
1.6) Lithium nitride
1.7) Aluminum oxide
1.8) Magnesium bromide
1.9) Sulfur trioxide
1.10) Carbon dioxide